Question: "What is {written by} of {Symphony No. 5}, which has {master} of {Eduard Marxsen} ?"
Paraphrase: "What is composed by of Symphony No. 5, which has ace of Eduard Marxsen ?"
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q231144 wdt:P86 ?answer . ?answer wdt:P1066 wd:Q509843}
Answer: Johannes Brahms